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SG 142.7-1983 机动玩具传动零件 滚花紧圈

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基本信息
标准名称:机动玩具传动零件 滚花紧圈
中标分类: 轻工、文化与生活用品 >> 文教、体育、娱乐用品 >> 玩具
发布日期:
实施日期:2001-10-01
首发日期:
作废日期:
出版日期:
页数:2页
适用范围

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所属分类: 轻工 文化与生活用品 文教 体育 娱乐用品 玩具
Product Code:SAE J2665
Title:Test Procedure to Measure the Fuel Permeability of Materials by the Cup Weight Loss Method
Issuing Committee:Fuel Systems Standards Committee
Scope: This test standard covers the procedure for measuring the permeation of fuel or fuel surrogates through test samples of elastomeric, plastic or composite materials, up to about 3 mm thick. The method involves filing a test cup with the test fluid (fuel or fuel surrogate), sealing test sample over the open end of the cup, and then placing the sealed container into an oven at the desired test temperature and measuring the weight loss over time. Permeation rates are calculated from the rate of weight loss and the exposed area of the test sample. Standard permeation test temperatures are 40 C and 60C. Standard test fluids are Fuel C, Fuel CE10 and Fuel CM15. Other fluids, such as Fuel CMTBE15, and other volatile liquids may be tested accordingly to this procedure as desired (SAE J1681). The method is not applicable for measuring permeation of higher boiling materials that will not completely evaporate from the exterior surface of the sample at the test temperature.
Rationale: This test standard covers the procedure for measuring the permeation of fuel or fuel surrogates through test samples of elastomeric, plastic or composite materials, up to about 3 mm thick. The method involves filing a test cup with the test fluid (fuel or fuel surrogate), sealing test sample over the open end of the cup, and then placing the sealed container into an oven at the desired test temperature and measuring the weight loss over time. Permeation rates are calculated from the rate of weight loss and the exposed area of the test sample. Standard permeation test temperatures are 40 C and 60C. Standard test fluids are Fuel C, Fuel CE10 and Fuel CM15. Other fluids, such as Fuel CMTBE15, and other volatile liquids may be tested accordingly to this procedure as desired (SAE J1681). The method is not applicable for measuring permeation of higher boiling materials that will not completely evaporate from the exterior surface of the sample at the test temperature.
基本信息
标准名称:半导体器件 分立器件 第7部分:双极型晶体管 第一篇 高低频放大环境额定的双极型晶体管空白详细规范
英文名称:Semiconductor devices- Discrete devices -Part 7:Bipolar transistors-Section One-Blank detail specification for ambient-rated bipolar transistors for low and high frequency amplification
中标分类: 电子元器件与信息技术 >> 半导体分立器件 >> 半导体三极管
ICS分类: 电子学 >> 半导体器件 >> 三极管
替代情况:GB/T 6217-1986
发布部门:国家质量技术监督局
发布日期:1998-01-01
实施日期:1999-06-01
首发日期:1986-04-12
作废日期:1900-01-01
主管部门:信息产业部(电子)
归口单位:全国半导体器件标准化技术委员会
起草单位:电子工业部标准化研究所
出版社:中国标准出版社
出版日期:2004-08-26
页数:平装16开, 页数:16, 字数:26千字
书号:155066.1-15868
适用范围

本空白详细规范规定了制定高低频放大环境额定的双极型晶体管详细规范的基本原则,制定该范围内的所有详细规范应与本空白详细规范一致。

前言

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所属分类: 电子元器件与信息技术 半导体分立器件 半导体三极管 电子学 半导体器件 三极管